Valve for fireless cookers.



M. MURPHY.

VALVE FOR FIRBLESS OOOKERS.

APPLICATION FILED FEB\14,1912.

Patented Feb 25, 1913 [NVENTOR &

WITNESSES MORTON MURPHY, OF JANESVILLE, WISCONSIN.

VALVE FOR FIRELESS COOKERS.

Specification. of Letters Patent.

Patented Feb. 25, 1913.

Application filed February 14, 1912. Serial No. 677,408.

To all whom. it may concern Be it known that I, MORTON MURPHY, a

citizen of the United States, residing at J anesville, in the county of Rock and State of Wisconsin, have invented certain new and useful Improvements in Valves for F ireless Cookers, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to valves to be used in connection with fireless cookers, and the like, and has particularly for its object the production of a simple mechanism which may be easily cleaned and which will not be likely to become corroded.

Another object of this invention is the production of an et'ficient valve stem which I is providedwith means for preventing the slipping of said stem from the basin which is adapted to support the same.

Still another object of this invention is I the production of a' valve for a fireless J the valve. Fig. 4. is a detail perspective of cookerwherein the pressure may be retained within the cooker up to the weight of the ball used in connection with the valve.

-With these and other objects in view, this invention consists of certainnovel constructions, combinations, and arrangements of parts as will be hereinafter fully. described and claimed.

In the drawings'z Figure 1 is a transverse section through the top of the fireless cooker showing the walve in connection therewith. Fig. 2 is a top plan View of the valve. Fig. 3 is"'a vertical section through the upperend of the valve stem detached 1 from the basin. Fig. 5 is a'perspective of an embodiment of the valve used in con- Fig.-

nection with the present invention. 6 is a vertical section of the structure dis closed in Fig. 5. Flg. 7 is a side elevation thereof.

tubular structure.

1,3 and4, so as to form spaced fingers 6. These fingers 6 are bowed as illustrated so as to retain the closure ball valve 7. The

arms 6 are bowed upwardly at a point where they protrude through the-aperture, and it will therefore be obvious that the bowed arms will resist any downward movement of the tubular body 5 within the fireless cooker. It will also be'obvious that these bowed arms perform a two-fold function by supporting the tubular portion 5 in its place as well as acting as a pocket or shield for the valve ball 7. These arms 6 do not protrude above the to of the basin 3 and in view of this fact t e arms will be shielded by the upper edge of the basin and will not be likely to come in contact with foreign objects thereby injuring the same.

The ball 7 will retain the steam within according to. the weight of the ball, but as soon as the pressure should rise above the Weight of the ball, the ball will be raised from its seat and steam will then escape from under the ball and between the arms 6. By the use of the basin 3 steam will not pass out overthe top of the fireless cooker so as to injure the material out of which the cooker is made, but all the condensed steam will fall within the basin.

In Figs. 5, 6 and 7 I have shown an embodiment of my invention wherein the tubular valve body 8 protrudes from the top of thefireless' cooker and receives a cap 9. This cap 9 is provided with a pair of gripping jaws 10 which straddle the pipe or tubular body 8 and hold the cap 9 upon said body 8. The cap 9 is also provided with a pair of curved lips 11 which engage the upper end of the tubular body 8 and limit the down ward movement of the cap 9 upon the body 8. Through the medium of these lips 11, it will not be necessary to adjust the cap 9 upon the tubular body 8 for these lips Will .the fireless cooker to a certain pressure or act as a stop and support thecap in its correct position. A ball valve 12 is used in connection with the valve and normally rests upon the upper edge of the tubular body 8 for closing the passage therethrough. Ofcou zse, this valvemay be'raised within the cap 9 to the position as shown in dotted lines in Fig. 6 when the ressure within the fireless cooker should obtain the desired height and allow the escaping steam to pass out through the openings 13 formed between the lips 11 and the jaws 10. The lips 11 are curved radially outwardly at their lower ends as illustrated at 14.- in Fig. 6 for facilibular body 8. By

tilting the placing of the cap 9 upon the tnthe use of the present structure it will be obvious that the cap may be readily removed from the body 8 thereby allowin the valve to be easily c eaned provided t e same should become corroded.

It will be obvious that I have produced avalve for fireless cookstove or cooker, to automatically relieve the excess steam pressure steam or moisture cally dry heat necessary for baking and roasting; also a safety valve, which will prevent the steam pressure in the compare ment, or oven of a fireless cookstove, or

- cooker reachin a point of danger. It willv be further obvious that I have produced a ventilating valve which may .be applied to any fireless eookstove or cooker in such a way that the cooker may be stacked conven iently without the removal of any of the parts of the ventilating valve which do not extend above the top or cover. The lower end of the tube 5 extends through the cover and insulation and the end of the tube is joined or spun'to the metal lining of the cover, thereby inaking' the jointsteam and moisture tight. 7

1. A valve for a fireless cooker of the. class described comprisin anv elongated escapement tube, provide with outwardly projecting arms, said arms being bent outwardly on the arc of a circle so as to have their upper ends extend inwardly, a basin engaging said escapement tube and straddling the same near the junction of said tube with said projectin arms,-and said arms adapted to prevent t e downward movement of said esca ement tube relative'to said b3; sin, and a. all valve ,ca'rried betweensaid 7 arms and capable of having longitudinal Y movement relative thereto.

2. A valve for a fireless cooker comprising an escapement tube, a basimsaid escapement tube provided with a plurality of projecting arms, a ball carried by said escapement tube and larger than the circumfere of Said,

.escapement tube and ,fitted between said arms, said arms adapt'ed-to -limit thedown-r ward ative to said basin.

In testimony whereof I-hereiinto signature in presence oftw'o witnesses. 1 MORTON MURPHY; v"Vitnesses: V

' GE0RGE GQSUTHERLAND,

ELIZABETH CASEY.

movement ofgsaid escapement .tube'reh 

